@trezor/connect/lib/api/signMessage.js

High-level javascript interface for Trezor hardware wallet.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
const schema_utils_1 = require("@trezor/schema-utils");
const AbstractMethod_1 = require("../core/AbstractMethod");
const types_1 = require("../types");
const paramsValidator_1 = require("./common/paramsValidator");
const coinInfo_1 = require("../data/coinInfo");
const formatUtils_1 = require("../utils/formatUtils");
const pathUtils_1 = require("../utils/pathUtils");
class SignMessage extends AbstractMethod_1.AbstractMethod {
  coinInfo;
  init() {
    this.requiredPermissions = ['read', 'write'];
    const {
      payload
    } = this;
    (0, schema_utils_1.Assert)(types_1.SignMessage, payload);
    const path = (0, pathUtils_1.validatePath)(payload.path);
    if (payload.coin) {
      this.coinInfo = (0, coinInfo_1.getBitcoinNetwork)(payload.coin);
      (0, paramsValidator_1.validateCoinPath)(path, this.coinInfo);
    } else {
      this.coinInfo = (0, coinInfo_1.getBitcoinNetwork)(path);
    }
    this.firmwareRange = (0, paramsValidator_1.getFirmwareRange)(payload.no_script_type ? 'signMessageNoScriptType' : this.name, this.coinInfo, this.firmwareRange);
    const messageHex = payload.hex ? (0, formatUtils_1.messageToHex)(payload.message) : Buffer.from(payload.message, 'utf8').toString('hex');
    const scriptType = (0, pathUtils_1.getScriptType)(path);
    this.params = {
      address_n: path,
      message: messageHex,
      coin_name: this.coinInfo ? this.coinInfo.name : undefined,
      script_type: scriptType && scriptType !== 'SPENDMULTISIG' ? scriptType : 'SPENDADDRESS',
      no_script_type: payload.no_script_type
    };
  }
  get info() {
    const coinInfo = (0, coinInfo_1.getBitcoinNetwork)(this.payload.coin ?? this.params.address_n);
    return (0, pathUtils_1.getLabel)('Sign #NETWORK message', coinInfo);
  }
  getButtonRequestData(code, name) {
    if (code === 'ButtonRequest_Other' && name === 'sign_message') {
      return {
        type: 'message',
        serializedPath: (0, pathUtils_1.getSerializedPath)(this.params.address_n),
        coin: this.coinInfo?.shortcut ?? 'BTC',
        message: this.payload.hex ? (0, formatUtils_1.hexToText)(this.payload.message) : this.payload.message
      };
    }
  }
  async run() {
    const cmd = this.device.getCommands();
    const {
      message
    } = await cmd.typedCall('SignMessage', 'MessageSignature', this.params);
    const signatureBuffer = Buffer.from(message.signature, 'hex');
    message.signature = signatureBuffer.toString('base64');
    return message;
  }
}
exports.default = SignMessage;
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